Ventilator



(No Model.) 7

' L. SILBERMAN.

VENTILATOR.

Patented Dec. 17, 1895.

UNITED STATES PATENT EEicE.

LOUIS SILBERMAN, OF BROOKLYN, NEIV YORK.

VENTILATOR.

SPECIFICATION forming part of Letters Patent No. 551,453, dated December 17, 1895. A li ti fil s June 14, 1895- Serial No. 552,772. (No model.)

To all whom it may concern.-

Be it known that I, LOUIS SILBEEMAN,a citizen of the United States, and a resident of the city of Brooklyn, county of Kings, and State of New York, have invented a new and usef ul Improvement in Ventilators, of which the following is a specification.

The object of this invention is to create contrary air-passages that will be effectual in producing a draft, whether the wind comes from one direction or another.

The invention consists in contrary diverg ing recesses leading into openings or air-passages.

Figure 1 is a side view of my improved ventilator. Fig. 2 is a base or under side view, and Fig. 3 is a side view of the base-plate.

A in the several figures represents a casing or outer air-chamber which supports the baseplate and flue pipe or tube. It is provided with a crown or dome A, which is held above the chamber A by stanchions A forming an open space A while the dome A extends beyond the chamber A, preventing rain and snow from passing down the flue or air-tube B.

B is a flue-tube or draft-pipe supported centrally in the chamber A by the base-plate O, and extends upward into the chamber A, as shown by dotted lines B Fig. 1.

O in the several figures is a base or deflecting plate conically formed and secured to the air-chamber A at O and to the flue-pipe B at 0 This plate is formed with alternate depressed and elevated sections O and O, as shown in the edge view of Fig. 3. These are formed by the vertical walls 0 Figs. 1 and 3.

In Fig. 2 there are eight sections, four depressed (represented by O) and four elevated, as shown by O. The several walls C diverge toward the flue B, as shown in Fig. 2, forming upper and lower inclined channels, as in Fig. 3. These channels 0 at their periphery lead upward into open spaces D D while channels 0 lead downward into the inner openings D D, as shown in Fig. 2. The air passing along the open space E, Fig. 1, strikes the inclined bottom of the channel O and passes up through the opening D into the chamber A, as indicated by the arrow, creating a draft or suction and causing the air, gases or smoke to be drawn from the fluepipe B and to pass out of the space A while the inclined channels O leading downward into the open space D carries away any surplus air through the opening D in the line of the arrow to. This is caused by the wind blowing against the inner side of the chamber A.

By the construction of several deflectingchannels O and C it will be readily seen that a draft is always created through the flue pipe 13, whether the wind comes from one point of the compass or another.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a ventilator the chamber A. having elevated dome A, forming space A in combination with the inclined base plate O. having openings D. and D, supporting a fine pipe B.-as and for the purpose described.

2. In a ventilator the chamber A. having elevated dome A, forming space A in combination with the base plate 0. having depressions (J and elevations O leading into the openings D. and D as and for the pur pose described.

3. In a ventilator the combination of the chamber A. dome A, stanchions A conical or inclined base plate 0. having openings D. and D and the flue pipe B. as and for the purpose described.

In testimony that I claim the foregoing as my invention 1 have signed my name, in presence of two witnesses, this 6th day of June, 1895.

LOUIS SlLBER-MAN. lVitnesses:

E. T. THOMAS, JAooB FREEMAN. 

